Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Apple
AAPL
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
226
Invesco QQQ Trust
QQQ
$376B
| $552K | 0.04% |
4,941
-94,361
| -95% | -$10.5M |
|
227
iShares MSCI Australia ETF
EWA
$1.53B
| $545K | 0.04% |
28,756
+26,701
| +1,299% | +$506K |
|
228
iShares Silver Trust
SLV
$20.3B
| $545K | 0.04% |
41,350
+11,952
| +41% | +$158K |
|
229
Pentair
PNR
$18.3B
| $535K | 0.04% |
16,107
+11,746
| +269% | +$390K |
|
|
HPY
230
DELISTED
HEARTLAND PAYMENT SYSTEMS, INC. COM STK
HPY
| $535K | 0.04% |
+5,652
| New | +$535K |
|
|
DPLO
231
DELISTED
DIPLOMAT PHARMACY, INC.
DPLO
| $528K | 0.04% |
15,443
+14,218
| +1,161% | +$486K |
|
232
ProShares Ultra Real Estate
URE
$58.7M
| $526K | 0.04% |
10,082
-370
| -4% | -$19.3K |
|
|
MRO
233
DELISTED
Marathon Oil Corporation
MRO
| $524K | 0.04% |
41,663
+16,752
| +67% | +$211K |
|
234
Pacira BioSciences
PCRX
$1.2B
| $522K | 0.04% |
6,804
+6,625
| +3,701% | +$508K |
|
235
GoPro
GPRO
$402M
| $517K | 0.04% |
28,749
-26,774
| -48% | -$481K |
|
|
HDP
236
DELISTED
Hortonworks, Inc.
HDP
| $517K | 0.04% |
+23,638
| New | +$517K |
|
|
EQM
237
DELISTED
EQM Midstream Partners, LP
EQM
| $509K | 0.04% |
6,753
+3,738
| +124% | +$282K |
|
|
EGRX
238
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $508K | 0.04% |
+5,737
| New | +$508K |
|
239
Ball Corp
BALL
$13.4B
| $504K | 0.04% |
13,880
+9,212
| +197% | +$334K |
|
|
PRE
240
DELISTED
PARTNERRE LTD
PRE
| $504K | 0.04% |
3,607
+2,390
| +196% | +$334K |
|
241
Abbott
ABT
$234B
| $502K | 0.04% |
+11,182
| New | +$502K |
|
242
Canadian Pacific Kansas City
CP
$69.4B
| $502K | 0.04% |
19,695
-24,330
| -55% | -$620K |
|
243
Prudential Financial
PRU
$36.6B
| $500K | 0.04% |
+6,145
| New | +$500K |
|
|
BLUE
244
DELISTED
bluebird bio
BLUE
| $497K | 0.04% |
598
+74
| +14% | +$61.5K |
|
|
WGL
245
DELISTED
Wgl Holdings
WGL
| $494K | 0.04% |
+7,848
| New | +$494K |
|
|
WW
246
DELISTED
WW International
WW
| $492K | 0.04% |
21,611
+7,327
| +51% | +$167K |
|
|
BPL
247
DELISTED
Buckeye Partners, L.P.
BPL
| $489K | 0.04% |
+7,423
| New | +$489K |
|
248
Pacific Biosciences
PACB
$384M
| $484K | 0.04% |
+36,937
| New | +$484K |
|
249
Plains GP Holdings
PAGP
$3.67B
| $475K | 0.04% |
18,899
+17,780
| +1,589% | +$447K |
|
|
XEC
250
DELISTED
CIMAREX ENERGY CO
XEC
| $475K | 0.04% |
5,317
+2,718
| +105% | +$243K |
|